Figure la. Upper surface of the test, 

 lb. Lower surface of the test. 



PLATE XCVI. 



Clypeaster bowersi Weaver (p. 209). 



Univ. California, type. 



Clypeaster (?) brewerianus (Remond) (p. 210). 

 Acad. Nat. Sci. Philadelphia 1088, specimen A. 



Figure 2a. Upper surface of the test. 

 2b. Lower surface of the test. 

 2c. Lateral surface of the test. 



Clypeaster (?) breweriantjs (Remond) (p. 210). 

 Univ. California 19423, specimen B. 



Figure 3. Upper surface of the test. 

 39800°— 15 28 



